North American Drager, a leading manufacturer of healthcare equipment required a sensing solution which monitors gas flow in their next generation of anaesthesia machines. The machines monitor the anaesthesia delivery system and provide ventilation to healthcare patients.
A new sensor assembly was required to measure respiratory flow rate using by means of ultrasonic transducers. The assembly is required to process flow rate information to provide a pulse train output compatible with the existing Drager Spiromed electronics.
Gill R&D developed a Sensor Assembly consisting of a flow sensor housing which mounts in the patient circuit, two sensor assemblies which mount on the flow housing, and an electronics assembly to control the transducers, process the data, and provide output.
An examination of the current Narkomed 'Monitoring system was undertaken with the view to designing a fully integrating PCB sub assembly. This PCB would not only contain all the original functionality, but also all the other functions implemented by the monitor and any additional control required to reduce system complexity.
The meter was designed so that the flow head and ultrasonic transducers could be connected via a short cable to the top of the absorber and fully integrated with the O2 and pressure sensors.
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